Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой最新文献
{"title":"Dust destruction at high galactic altitude","authors":"E. Sivkova, D. Wiebe","doi":"10.15826/B978-5-7996-3229-8.48","DOIUrl":"https://doi.org/10.15826/B978-5-7996-3229-8.48","url":null,"abstract":"The possibility of destruction carbonaceous dust particles swept out by the radiation pressure into near-galactic space due to the relative motion of dust particles of various sizes is considered. The earlier model of the motion of dust in the Galaxy under the action of radiation pressure, gravity, and gas resistance is expanded taking into account the destruction processes. The possibility of dust sweeping is considered taking into account its collisions with the gas of the Galaxy and with other dust particles. Also, we clarify the range of particle sizes that can get into intergalactic space due to the described mechanism.","PeriodicalId":416696,"journal":{"name":"Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126125634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Interstellar planets","authors":"G. Dryomova, V. Dryomov, A. Tutukov","doi":"10.15826/b978-5-7996-3229-8.26","DOIUrl":"https://doi.org/10.15826/b978-5-7996-3229-8.26","url":null,"abstract":"The lecture is devoted to the study of the role of gravitational scattering in the evolution of planetary systems. This mechanism explains the origin of the Oort cloud and free asteroids, comets, and planets (ACPs) from the parent star.","PeriodicalId":416696,"journal":{"name":"Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116598957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Kargaltseva, A. Dudorov, S. A. Khaibrahmanov, S. Parfenov
{"title":"Formation and observational features of primary disks in collapsing protostellar clouds","authors":"N. Kargaltseva, A. Dudorov, S. A. Khaibrahmanov, S. Parfenov","doi":"10.15826/b978-5-7996-3229-8.29","DOIUrl":"https://doi.org/10.15826/b978-5-7996-3229-8.29","url":null,"abstract":"We perform numerical MHD simulations of the isothermal collapse of magnetic rotating protostellar clouds to investigate initial conditions for protostellar disks formation. The simulations show that a hierarchical structure of the cloud is formed during the isothermal collapse: a flattened cloud envelope with a primary magnetostatic disk inside. The first core forms inside the primary disk further. We investigate the dependence of the characteristics (size, mass, angular momentum) of the envelope and primary disk on the initial thermal, magnetic, and rotational energies. Based on the results of numerical simulation the average brightness temperature in the NH3 line (2,2) is under construction.","PeriodicalId":416696,"journal":{"name":"Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой","volume":"409 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114003772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of photometric observations of the variable HS 2231+2441","authors":"","doi":"10.15826/b978-5-7996-3229-8.06","DOIUrl":"https://doi.org/10.15826/b978-5-7996-3229-8.06","url":null,"abstract":"The paper analyzes photometric observations and determines the parameters of a young precataclesmic variable with the subdwarf B, HS 2231+2441. During differential processing of observations, the light curves of the object in the V and R bands were constructed. Their model analysis was carried using models of irradiated stellar atmospheres with the combined consideration of the effects of reflection and nonsphericity of the components. As a result of the optimal description of the observed light curves, some of the parameters of the system were redefined: the inclination angle and semi-major axis of the orbit, the radii and masses of the components of HS 2231+2441. The resulting set of parameters is in good agreement with modern ideas about the characteristics of such systems.","PeriodicalId":416696,"journal":{"name":"Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой","volume":"371 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126712222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. A. Kruglikov, A. Y. Pastuhovich, G. Yakovlev, V. Grokhovsky, O. Unsalan
{"title":"Analysis of the bright fireball over Turkey on may 27, 2020 followed by meteorite recovery campaign","authors":"N. A. Kruglikov, A. Y. Pastuhovich, G. Yakovlev, V. Grokhovsky, O. Unsalan","doi":"10.15826/B978-5-7996-3229-8.30","DOIUrl":"https://doi.org/10.15826/B978-5-7996-3229-8.30","url":null,"abstract":"Bright fireball on May 27, 2020 was imaged in a lot of points in Turkey, Georgia and Armenia, as well as from Stavropol Region (Russia). Based on these observations we present results on luminous trajectory reconstruction which led to several meteorite expeditions in next few months.","PeriodicalId":416696,"journal":{"name":"Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой","volume":"309 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132854915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamical evolution of asteroid pairs in the vicinity of resonances","authors":"A. E. Potoskuev, E. Kuznetsov","doi":"10.15826/B978-5-7996-3229-8.40","DOIUrl":"https://doi.org/10.15826/B978-5-7996-3229-8.40","url":null,"abstract":"Dynamical evolution of asteroid pairs in close orbits near Jovian mean motion resonances (3 : 1, 4 : 1, 5 : 2, 7 : 3) has been researched by means of numerical integrations of the equations of motion over 1 Myr time interval in the future. Initial orbital elements’ uncertainty and semi-major axis drift due to the Yarkovsky effect significantly affect orbit modification with time, especially for objects originally situated in the vicinity of resonances. Passing through a resonance generally leads to orbital distance growth.","PeriodicalId":416696,"journal":{"name":"Астрономия и исследование космического пространства: Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121929301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}